/*
 * Copyright (c) 2022, 2023 Oracle and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.helidon.http.encoding;

import java.io.OutputStream;
import java.util.function.UnaryOperator;

import io.helidon.http.WritableHeaders;

/**
 * Content encoder.
 */
public interface ContentEncoder extends UnaryOperator<OutputStream> {
    /**
     * No-op content encoder.
     */
    ContentEncoder NO_OP = network -> network;

    /**
     * Encode an output stream.
     *
     * @param network output stream to be written over the network
     * @return output stream to write plain data (to compress, encrypt)
     */
    @Override
    OutputStream apply(OutputStream network);

    /**
     * Update headers.
     *
     * @param headers headers to update
     */
    default void headers(WritableHeaders<?> headers) {
    }
}
